本文链接:http://blog.csdn.net/kongxx/article/details/7230080
在嵌入式Jetty中,有时候我们想运行一些的Servlet,此时就需要创建创建Context,然后让自己的Servlet运行在这些ServletContext中。
1. 首先创建一个ServletContextServer类,用来初始化web应用程序的Context,并且指定Servlet和Servlet匹配的url。这里指定了两个Servlet,分别是HelloServlet和GoodbyeServlet,并分别对应/hello/*和/goodbye/*。
- package com.google.code.garbagecan.jettystudy.sample5;
- import org.eclipse.jetty.server.Server;
- import org.eclipse.jetty.servlet.ServletContextHandler;
- import org.eclipse.jetty.servlet.ServletHolder;
- public class ServletContextServer {
- public static void main(String[] args) throws Exception {
- Server server = new Server(8080);
- ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
- context.setContextPath("/");
- server.setHandler(context);
- // http://localhost:8080/hello
- context.addServlet(new ServletHolder(new HelloServlet()), "/hello");
- // http://localhost:8080/hello/kongxx
- context.addServlet(new ServletHolder(new HelloServlet("Hello Kongxx!")), "/hello/kongxx");
- // http://localhost:8080/goodbye
- context.addServlet(new ServletHolder(new GoodbyeServlet()), "/goodbye");
- // http://localhost:8080/goodbye/kongxx
- context.addServlet(new ServletHolder(new GoodbyeServlet("Goodbye kongxx!")), "/goodbye/kongxx");
- server.start();
- server.join();
- }
- }
[java] view plaincopyprint?
- package com.google.code.garbagecan.jettystudy.sample5;
- import java.io.IOException;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- public class HelloServlet extends HttpServlet {
- private static final long serialVersionUID = 1L;
- private String msg = "Hello World!";
- public HelloServlet() {
- }
- public HelloServlet(String msg) {
- this.msg = msg;
- }
- protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
- response.setContentType("text/html");
- response.setStatus(HttpServletResponse.SC_OK);
- response.getWriter().println("<h1>" + msg + "</h1>");
- response.getWriter().println("session=" + request.getSession(true).getId());
- }
- }
- package com.google.code.garbagecan.jettystudy.sample5;
- import java.io.IOException;
- import javax.servlet.ServletException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- public class GoodbyeServlet extends HttpServlet {
- private static final long serialVersionUID = 1L;
- private String msg = "Goodbye!";
- public GoodbyeServlet() {
- }
- public GoodbyeServlet(String msg) {
- this.msg = msg;
- }
- protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
- response.setContentType("text/html");
- response.setStatus(HttpServletResponse.SC_OK);
- response.getWriter().println("<h1>" + msg + "</h1>");
- response.getWriter().println("session=" + request.getSession(true).getId());
- }
- }
http://localhost:8080/hello
http://localhost:8080/hello/kongxx
http://localhost:8080/goodbye
http://localhost:8080/goodbye/kongxx
4. 除了上面的方式外,也可以创建两个个Context,分别绑定到"/hello"和"/goodbye",如下:
[java] view plaincopyprint?- package com.google.code.garbagecan.jettystudy.sample5;
- import org.eclipse.jetty.server.Handler;
- import org.eclipse.jetty.server.Server;
- import org.eclipse.jetty.server.handler.ContextHandlerCollection;
- import org.eclipse.jetty.servlet.ServletContextHandler;
- import org.eclipse.jetty.servlet.ServletHolder;
- public class MultiContextServer {
- public static void main(String[] args) throws Exception {
- Server server = new Server(8080);
- // http://localhost:8080/hello/kongxx
- ServletContextHandler context1 = new ServletContextHandler(ServletContextHandler.SESSIONS);
- context1.setContextPath("/hello");
- context1.setResourceBase(".");
- context1.setClassLoader(Thread.currentThread().getContextClassLoader());
- context1.addServlet(new ServletHolder(new HelloServlet("Hello Kongxx!")), "/kongxx");
- // http://localhost:8080/goodbye/kongxx
- ServletContextHandler context2 = new ServletContextHandler(ServletContextHandler.SESSIONS);
- context2.setContextPath("/goodbye");
- context2.setResourceBase(".");
- context2.setClassLoader(Thread.currentThread().getContextClassLoader());
- context2.addServlet(new ServletHolder(new GoodbyeServlet("Goodbye kongxx!")), "/kongxx");
- ContextHandlerCollection contexts = new ContextHandlerCollection();
- contexts.setHandlers(new Handler[] { context1, context2 });
- server.setHandler(contexts);
- server.start();
- server.join();
- }
- }